Valve.



W. R. LINDELSEE.

VALVE.

APPLICATION FILED MAY 1, 191s.

, Lwlqg, Patented. June 30,1914J gl ZJ hwg-gm J0 E lglwgmljlllllllllllgllll lllt E 2e @Y J6 jm @Mig UNITE@ VIAVIFS PATENT @FFIQE WILLIAM It. IIINDELSEE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 FREDERICK Y. NICHOLS, OF CHICAGO, ILLINOIS.

VALVE.

racines.

Specification of Letters Patent.

Patented @I une 36, 1914.

Application filed May 1, 1913. Serial No. 764,757.

To all whom t may concern it known that I, TvViLLrAM R. LIN- Dnnsnn, a citizen of the United States` residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves, of which the following is a specification.

My invention relates to improvements in valve structures of that class wherein a valve frame surrounds a guiding stud that projects from a valve seat structure and is adapted for reciprocable movement thereon and when raised is automatically returned to its normal position by means of a spring.

rIhe salient features of my invention is the provision of means for readily and cheaply renewing the seating surfaces of said structure, so as to preserve the major portion of the structure for further continued use. In valves of this character, the packing rings that are usually carried inthe valve frame are generally renewable, but the structure carrying the cooperating valve seats is, in most instances, an integral part of the seat, so that when the seats become worn by use the entire seat structure is thrown away, including, in many cases, the valve portion.

rlhe object of my present invention is to provide a new and improved means for inserting new seating rings in the old seat structure and to retain said rings therein by a very simple and effective expendient.

Other and further objects of my invention will become readily apparent to persons skilled in the art from a consideration of the following description when taken in conjunction with the drawing, wherein- Figure 1 is an elevation of a valve structure, showing the parts containing my invention in section` taken on line 1-1 of Fig. 2; Fig. 2 is a plan view of the seat-containing structure; Fig. 3 shows the relative position of the parts in section, before assembling; Fig. 4 is an enlarged plan view of a portion of the seat-containing structure, showing the grooves or annular recesses for retaining the seat-ring; Fig. 5 is a portion of one of the seat rings.

In all the views the same reference characters are employed to indicate similar parts.

10 isl the valve structure containing the usual packing rings surrounding a centrally disposed stud 11 which projects from the seat structure 12. The valve 10 is held normally on its seat by means of the resilient spring 13 that is retained upon the studs 11 by the nuts 14 as usual in such constructions.

'I he valve seats comprise two annular portions or rings 15 and 16 that project a suitable distance above the upper surface of the valve-seat structure 12. These rings are usually integral parts of the structure 12 and when, after continued use, these rings become worn so as to be no longer serviceable the entire seat structure 12 is usually cast aside and an entire new valve takes its place.

The salient feature of my invention is the means employed for substituting new rings 15 and 16 for those which constitute an integral portion of the structure 12, and to this end I turn into the upper surface of the seat structure 12 two annular recesses 17 and 18 and insert in these recesses rings 15 and 16 which in all essential respects are practically the same as the rings which were originally made as integral portions of the seat structure 12. After the rings 15 and 16 have been inserted in their respective recesses 17 and 18, I drill two holes 19 and 20 in any of the arms 21 constituting the spider of the valve structure 12. Previous to inserting the rings 15 and 16 in their respective recesses, I turn in either of their side surfaces grooves 22. The grooves 22, in each of the rings 15 and 16, confront the holes 19 and 2O in the spider arms 21. I now provide pins 23 and 24 having tapered heads. 1When the rings 15 an 16 are held rmly in their respective recesses, I then drive the pins 23 and 24 in the holes 19 and 2O respectively, in one or more of the arms or spokes 21. Ihe act of driving the pins 23 and 24 in the holes causes portions of the metal which is adjacent the respective rings, and which surrounds the said holes, to be set over, the tapered heads of the pins 23 and 24 corresponding substantially to the taper of the grooves 22 so that the metal of the part 12 which is in the same plane with the axis of the pins and grooves 23 and 24 is set over into the grooves, as clearly shown in Fig. 1, rendering it practi cally impossible to remove the rings 15 and 16 from their positions with reference to the part 12, and firmly holding them in place. If desired, more than one spoke 21 may be new rings provided" ando'therspokes inthe ling ring' having a eOOYe in tain the ring in place.

, 1n practice I have found that thetreatment of a single spoke is suflicient. y

, turned out or third/set of rings may,v in a similar Inan- `ner, bel insertedand retained:y inthe seat structure l2, andby this'nieans the inajor portion kof the finaterial constituting the vkusedfor a relatively protracted length ofl time. l

treated in'this'way, as sho-Wnv Vbut l f rings have previously been linserted in the part l2 and it is desired that new rings part having an annular ceivea 'packing ring; a' packing ring' having a lgroove in its side surface, contained within said annular recess; a plurality of arms join- Ava'lv structureicoinp'rising a bodyrecess therein to rebe inserted, thc first inserted rings may be'i "-ing the said body part with a hub part; and

p of their respectivekgroovesfand structure may be perforated and pins 23 and 24 driven into the perforations; thus second valve structure may Well be retained and Whatfl'lll. is?, c. l'. valve seat l structure`yy cinpr'ising a body-part having an 'annular recess "therein to receivea valve-seating ring; a valveseat-IV its side surface, y contained within said "annular recessfwhen'* y 'tapered pin driven into `a perforation' provided; inthe valve-seat structure nevar said groove, whereby tofsetI over part of`the""1 rietal of said valve-seat structurel into saidL groove to reopie's of Athis baisent obtained tio erall ring joined 'to'fa vhub y a o farins, the v said vpe'rlp'he'ralring vand hub -.part having annular"recessesftherein torec'eive packing rings;x paking rings each'lhav- {inga grooi'fle in its Iside'su'rface adjacent the other ring,I conta'ined 'y Within said annular @recesses when' said' ringsare in place and a vtaperedpini driveninto perforation pro- '.vided in one of vthe y lsetover apart ofthe Inet-al of siaidfarnifinto the grooves in the" packing rings and to reftain'the saine' in place.Y ,y p y part of the Inetal into 3. A valve structure comprising a periph- 'par't by' plurality said 'a'ArrnsI whereby to WILLIAM nftLiNlDnns-EE.

'inthe-presea@ of- A FoieifiBriana,

" `MARY GQALLEN.

Washington; D. C. 

